Sui is a proof-of-stake Layer 1 blockchain that represents on-chain state as objects and uses SUI as its native token. Its object model can let transactions on independent objects run in parallel, while transactions that use shared objects rely on consensus.
| Metric | Value |
|---|---|
| Ticker | SUI |
| Price | $0.96 |
| Market cap | $3.95B |
| 24-hour change | -2.8% |
CoinGecko API fallback snapshot: 2026-10-18 19:21 UTC. Price, market cap, and 24-hour change can move; this is not investment advice.
How It Works
Move programs and object state
Sui apps use smart contracts written in Move. The network stores resources, assets, and other on-chain data as objects. Each object has a unique identifier, an owner, a version, and data. A transaction takes object inputs, runs its programmed actions, and creates, changes, transfers, or removes objects.
Owned and shared objects
An object may be owned by an address, another object, or shared with the network. When transactions use separate owned objects, the system can process independent work in parallel. Shared objects, such as a common pool that many users update, must be sequenced through consensus. As a result, parallel execution is a design capability, not a guarantee that every app or workload avoids contention.
Mysticeti consensus
Sui’s current documentation describes Mysticeti, a directed acyclic graph (DAG) based Byzantine fault tolerant consensus protocol. Validators propose blocks in parallel, and consensus orders work involving shared objects. The network’s transaction path therefore depends partly on which objects an app uses and how they are owned.
Tokenomics
SUI is used to pay network gas fees and can be staked with validators in Sui’s delegated proof-of-stake system. It also serves as a liquid asset in applications on the network, and Sui’s documentation describes a role for SUI holders in on-chain governance. Sui sets a maximum supply of 10 billion SUI; the amount available in the market changes as tokens follow their release schedules. The maximum supply is not the same as the circulating supply.
Use Cases
Sui’s object model is designed for applications that create and update distinct digital assets. Examples include decentralized finance, games, collectibles, and apps that bundle several actions into one programmable transaction. zkLogin is a Sui feature that lets apps use familiar identity providers as part of account onboarding while relying on zero-knowledge proofs. These are network capabilities and use-case categories, not a claim that every application is widely adopted or secure.
History
- May 3, 2023: Sui’s public mainnet launched.
- Protocol development: Sui’s consensus design has evolved; current Sui documentation identifies Mysticeti as the consensus protocol. Older descriptions of Narwhal and Bullshark should be read as historical architecture, not the current protocol summary.
Common Misconceptions
“Every Sui transaction bypasses consensus.” Some transactions on owned objects can take a fast path, but shared-object transactions require consensus ordering.
“Move makes Sui smart contracts bug-proof.” Move’s type and resource rules can help constrain how assets are represented and used. They do not prevent mistakes in application logic, access controls, oracle assumptions, or economic design.
“A benchmark TPS figure is the network’s normal live speed.” Sui documentation distinguishes controlled benchmark results from production metrics. Real performance depends on workload, object contention, validator conditions, and the measurement method.
Criticisms and Trade-offs
Shared objects create coordination points: popular objects can require more consensus work and may become contested by concurrent transactions. Developers also need to understand object ownership and transaction dependencies to benefit from parallel execution. Finally, language-level safeguards do not eliminate smart-contract risk; users still face bugs, compromised interfaces, economic exploits, and changing token supply as scheduled releases occur.
Social Media Sentiment
In a March 20, 2026 r/sui discussion, a poster argued that Sui’s object model could help a monolithic Layer 1 compete with modular designs, while asking whether state growth and full-node hardware could become constraints. A separate June 7, 2026 thread about Sui’s potential expressed a favorable view of object-based execution. These are individual community posts, not a representative survey, and their comparisons are opinions rather than performance measurements.
Last updated: 2026-10
How to Get SUI
SUI is available through some crypto exchanges and swap services, depending on location and platform support. Before sending it, confirm the destination supports the Sui network and check the current fees. Using a self-custody wallet also means protecting its recovery phrase and signing only transactions you understand.
Related Terms
See Also
- Does Ethereum TPS Include Layer 2 Transactions? — explains why transaction-throughput comparisons need consistent counting rules.
- What Are Zero-Knowledge Proofs? — gives context for Sui’s zkLogin onboarding feature.
- Why Smart Contract Audits Fail — covers security risks that language features alone cannot remove.
- Swap crypto with ChangeNOW
Sources
- Sui Documentation — Consensus and Mysticeti — describes the current consensus protocol and distinguishes controlled throughput benchmarks from production metrics.
- Sui Documentation — Object Model — explains object identity, ownership, versions, and how transactions read and change objects.
- Sui — SUI Token Schedule — documents SUI’s network uses, 10-billion-token cap, and scheduled releases.
- CoinGecko — Sui (SUI) — provides the market listing used for the page’s price, market-cap, and 24-hour-change fields.